MASTER PLUMBER Quiz EXAM Key Features of this APP: • At practice mode you can see the explanation describing the correct answer. • Real exam style full mock exam with timed interface • Ability to create own quick mock by choosing the number of MCQ’s. • You can create your profile and see your result history with just one click. • This app contains large number of question set that covers all syllabus area. A plumber with a journeyman's license will have to work under a master plumber for at least five years before they can take the test to become a master plumber. The test for a license as a master plumber is actually quite practical and only tests the skills that the plumber has acquired over the years. However, the plumber must prove their ability to work on complex and major projects. It also tests knowledge of federal and state codes of practice.